HTTP-java模拟Get请求小栗子

 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.net.HttpURLConnection;
 import java.net.URL;
  import javax.net.ssl.HttpsURLConnection;
 import org.apache.log4j.Logger;  /*
  * GET请求类,非线程类
  */
 public class GetRequest {
     private String url = "https://b2b.10086.cn/b2b/main/viewNoticeContent.html?noticeBean.id=";
     private Logger logger;
     public GetRequest() {
         logger = Logger.getLogger(GetRequest.class);
     }

     public ExtendCandidate getData(String id) {
         this.url = url + id;
         BufferedReader in = null;
         HttpURLConnection conn = null;
         String result = "";
         try {
             conn = (HttpURLConnection)new URL(url).openConnection();
             // 发送GET请求必须设置如下两行
             conn.setDoInput(true);
             conn.setRequestMethod("GET");
             // flush输出流的缓冲
             in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
             String line;
             while ((line = in.readLine()) != null) {
                 result += line;
             }
         } catch (Exception e) {
             logger.error("发送 GET 请求出现异常！\t请求ID:"+id+"\n"+e.getMessage()+"\n");
         } finally {// 使用finally块来关闭输出流、输入流
             try {
                 if (in != null) {
                     in.close();
                 }
             } catch (IOException ex) {
                 logger.error("关闭数据流出错了！\n"+ex.getMessage()+"\n");
             }
         }
         //获取到结果result，可以直接添加处理，或者存储到全局变量......
     }
 }

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